Furnace for liquid fuel.



No. 728,564. PATENTED MAR. 24, 1903. A. WENGENROTH.

FURNACE FOB. LIQUID FUEL.

APPLICATION FILED DEG. s, 1902.

N0 MODEL.

UNITED STA-Ties PATENT Fries.

AUGUST \VENGENROTH, OF WEST HOBOKEN, NEW JERSEY, ASSIGNOR OF ONE-THIRD TO FREDERICK AUGUST ARBENZ, OF WEST HOBOKEN, NEW

JERSEY.

SPECIFICATION forming m of Letters Patent No. 723,5 4, dated March 24, 1903.

7 Application filed December 3,1902. Serial No. 133.771: (No model.)

To all whom, it may concern:

Be it known that I, AUGUST WENGENROTH,

of the city of West Hoboken, county of Hudson, and State of New Jersey, have invented;

certain new and useful Improvements in Furnaces for Liquid Fuel, of which the following is a full, clear, and exact specification, reference being bad to the accompanying drawings, wherein Figure l is a longitudinal sectional view of a boiler-furnace constructed according to my My invention relates to furnaces and heat ing appliances; and it consists of the hereinafter-described construction of a liquid-fuel conduit and in the combination of it with other parts in theconstruction of a furnace or heating apparatus.

Referring to the drawings, numeral 1 designates a liquid-fuel'conduit, and 2 a steam or compressed-air conduit, as are generally used in such cases.

3 designates cocks governing the how of the fuel into the burners.

at is a supporting-bar,whereon my improved liquid-fuel conduit is supported.

5 is a trough or drip-pan for gathering the overflow of the liquid fuel.

The mixing or carbureting apparatus (shown in sectional view in Fig. 1) consists of a chamber 6, secured to the air-conduit, as will be seen in Fig. 5, subdivided by web 7 into two compartments a and b, nozzles S and 9, and needle-valve 3. Compartment (1 of chamber 6 connects with the oil-conduit and compartment b with the conduit forsteam or compressed air. Compartment 1) is connected by nozzle 8 with the fuel-conduit A within the furnace. Nozzle 9, screwed in the web 7 and set concentrically with nozzle 8, discharges the oil in a spray into nozzle 8, whence the same is carried by the current of fuel apparatus is set in action.

air or steam into the conduit in the fuel-conduit within the furnace. Some of the known devices may be employed for dispersing the flow of the liquid fuel, (atomizing;) but this .is not essential to the working of my invention. Needle-valve 3 is provided for regulating the flow of the liquid fuel.

The fuel-conduit located in the furnace or heating apparatus is com posed, preferably, of fireproof brick material made up in sections, as shown'in Figs. 3 and 4, these sections being provided with alternating recesses,whereby the sections when joined longitudinally interlock with each other, as shown in Fig. 1. Each section consists of a base-piece 10 and top piece 11. Base-piece 10 is formed in the shape of a trough, being provided with a semicircular depression 12 on its upper face. Top piece 11 is provided with a deep longitudinal channel or groove 13 and with shallower semicircular grooves l4,arranged transversely at intervals. In addition thereto perforations 15, distributed at intervals and alternating with grooves 14, areprovided in these top pieces. Channel 13 of the last section is closed on its end.

When constructing a furnace according to my invention, the sections of the conduit are placed on beams 4: or other suitable supports and joined together, as shown in the drawings, .Theinterlocking joints between the sections are sealed and secured together with fireproofcement. to channel 13 of the first section and the joint hermetically sealed. The drip-pan is then set .in positionyand some distance above its bottom apertures for draft air and dampers are arranged.

When starting the furnace, alight wood fire is lighted in the furnace and then the liquid- The force of the compressed air, steam, or other medium drives the carbureted liquid fuel through channel 13, channels let, and perforations 15 into the furnaces, where it is consumed, each 9 is conducted into the furnace the pressure Then nozzle Sis connected on the fuel is correspondingly distributed and reduced and there is only a comparatively low flame produced at each of the many outlets of the conduit. Consequently the overheating of the boiler in one place, which heretofore was the most serious defect of apparatuses for-burning liquid fuel, is avoided.

I have conducted along series of tests when devising the hereinbefore-described apparatus and found that by constructing and arranging the fuel-conduit in the furnace as I have explained a flame is obtained in the furnace almost identical with the flame of the coal when burned with forced draft and that every portion of the boiler within the furnace is uniformly heated.

I claim as my invention 1. A conduit for liquid fuel, composed of a trough-like base, having a semicircular depression in its upper face, and of a top piece fitted into the base, and having a longitudinal groove approximately in its center, of tranverse grooves at intervals, and perforations, communicating with the longitudinal groove, substantially as herein shown and described.

2. A conduit for liquid fuel, composed ofa trough-like base, having a semicircular depression on its upper face, and of'a top piece fitted into the base, and having a longitudinal groove approximately in its center, of transverse grooves at intervals, and perforations, communicating with the longitudinal groove, and alternating with the transverse grooves, substantially as herein shownand described.

3. A furnace forboilers and heating apparatuses, comprising the combination with an apparatus for mixing liquid fuel and com pressed air or steam, of a conduit composed of a trough-like base, having a semicircular depression on its upper face, and of a top piece fitted into the base and having a longitudinal groove approximately in its center, of transverse grooves at intervals, and perforations, communicating withthe longitudinal groove, substantially as herein shown and described.

AUGUST WENGENROTH.

WVitnesses:

ROBERT VALENTINE MATHEWS, M. A. HELMKE. 

